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Research has shown that smartphones can harbor a significant amount of bacteria, but a new study from Florida Atlantic University reveals that health wearables, such as smartwatches and fitness bands, may be even dirtier. The study found that nearly 95% of wearable straps tested were contaminated with various forms of bacteria.

Rubber and plastic-based materials were found to have the highest degree of contamination, while metal-based bands with gold and silver showed the lowest bacterial activity. The concentration of bacteria varied depending on a person’s gender and occupation. Gym-goers and veterinary experts had the highest concentration of pathogenic species on their bands and straps.

During the study, researchers found Staphylococci, Pseudomonads, and Enterobacteriaceae to be the most common pathogens living on the straps. Staphylococci can cause blood infections, costing the U.S. healthcare system billions of dollars annually. Another strain, s. aureus, can trigger blood clotting, infective endocarditis, and organ failure. Rubber and plastic bands were also found to harbor Pseudomonas aeuginosa, which can cause urinary tract infections, and Escherichia Coli, related to fecal-oral infections.

The study suggests that the porous and static surfaces of rubber and plastic bands provide an ideal environment for bacteria to thrive, while metals inhibit bacterial enzymes and are therefore a safer option. However, metal bands are slightly more expensive.

To clean smartwatch bands, the study tested various cleaning solutions, including Lysol Disinfectant Spray, 70% Ethanol, and apple cider vinegar. Lysol and ethanol solutions were effective in reducing bacteria counts in as little as 30 seconds, while apple cider vinegar required 2 minutes of exposure.

Apple and Samsung already provide cleaning recommendations for their bands, including isopropyl alcohol wipes, ethyl alcohol wipes, and disinfectant wipes. Other household items like nail polish remover, quaternary ammonium soaps, and lemon juice can also help tackle pathogenic growth to some extent.

In conclusion, health wearables can harbor a significant amount of bacteria and pathogens, with rubber and plastic bands being the most contaminated. Metal bands offer a safer option. Regular cleaning with appropriate cleaning solutions is advised to maintain hygiene.

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